Chevy’s Newest, Most Powerful Crate Engine Puts Out 1,004 HP

Chevy isn’t shying away from ICE amidst all the EV advances. In fact, the automaker unveiled its biggest, most powerful crate engine yet.

Today, Chevrolet Performance introduced the ZZ632/1000 crate engine which is the largest and most powerful crate engine in the brand’s history. The naturally aspirated 632-cubic-inch V-8 produces 1,004 horsepower and 876 lb-ft of torque. The new crate engine shares its mold with the ZZ572 engine from the COPO Camaro. 

“This is the biggest, baddest crate engine we’ve ever built,” said Russ O’Blenes, GM director of the Performance and Racing Propulsion Team. “The ZZ632 sits at the top of our unparalleled crate engine lineup as the king of performance. It delivers incredible power, and it does it on pump gas.”

The V8 reaches peak power at 6,600 rpm and revs to a recommended maximum of 7,000 rpm. Fuel is delivered by eight port injectors with the engine breathing through CNC-machined high-flow aluminum cylinder heads featuring symmetrical ports.

While Big Blocks have traditionally been designed with variations in port shape from cylinder to cylinder, all eight intake ports of the ZZ632 have the same length, volume and layout. Similarly, all of the ZZ632’s exhaust ports are identical. This symmetry ensures individual cylinders all produce similar power.

Chevy will have the engine on display during the 2021 SEMA show next month. Deliveries are scheduled to begin early 2022.